BadMethodCallException Error on Owncloud 9.0.1

Hello I get these error on my Owncloud Server

Configuration:
Ubuntu 16.0.4 LTS
Owncloud 9.0.1
Webserver Apache2

Error:
**Exception: {"Exception":"BadMethodCallException","Message":"Not in **
**batch","Code":0,"Trace":"#0 **
\/var\/www\/html\/owncloud\/lib\/private\/Files\/Utils\/Scanner.php(143):
** OC\Files\Cache\Propagator->commitBatch()\n#1 **
\/var\/www\/html\/owncloud\/apps\/files\/lib\/BackgroundJob\/ScanFiles.php(87):
** OC\Files\Utils\Scanner->backgroundScan('')\n#2 **
\/var\/www\/html\/owncloud\/apps\/files\/lib\/BackgroundJob\/ScanFiles.php(111):


OCA\Files\BackgroundJob\ScanFiles->runScanner(Object(OC\User\User))\n#3
** \/var\/www\/html\/owncloud\/lib\/private\/BackgroundJob\/Job.php(52): **
**OCA\Files\BackgroundJob\ScanFiles->run(NULL)\n#4 **
\/var\/www\/html\/owncloud\/lib\/private\/BackgroundJob\/TimedJob.php(53):
** OC\BackgroundJob\Job->execute(Object(OC\BackgroundJob\JobList), **
**Object(OC\Log))\n#5 \/var\/www\/html\/owncloud\/cron.php(122): **
OC\BackgroundJob\TimedJob->execute(Object(OC\BackgroundJob\JobList),
** Object(OC\Log))\n#6 **
{main}","File":"\/var\/www\/html\/owncloud\/lib\/private\/Files\/Cache\/Propagator.php","Line":145}

from the issue template shown when creating a new thread in the oC server category:

make sure that you're running the latest available version for your oC release: https://owncloud.org/changelog/

Please update to a recent oC version like 9.0.4. For such an outdated version no support can be given here.

If that issue is still there after an update create a new thread and make sure that you're filling out the prefilled template shown in the input box when creating a new thread in the "oC server" category.